Untitled

angular.module('myApp');

angular.module('myApp', ['ngCookies']);

<body>
<form ng-submit="callSignIn(username, password, site)">
Email:
  <input type="text" ng-model="username"><br>
Password:
  <input type="text" ng-model="password"><br>
Site:
  <input type="text" ng-model="site"><br>
  <input type="submit" value= "Submit">
</form>
<section ui-view>Response: {{response}}</section>
</body>

'use strict';
(function(){

  class LoginComponent {
    constructor($scope, $http) {
      $scope.callSignIn = function(username, password, site) {
        $http.post('/api/auth/signin', {
          username: username,
          password: password,
          site: site
        }).success(function(response) {
          $scope.response = response;
        });
      };

    }
  }

  angular.module('orbitApp')
    .component('login', {
      templateUrl: 'app/login/login.html',
      controller: LoginComponent
    });

})();

'use strict';

angular.module('orbitApp')
  .config(function ($stateProvider) {
    $stateProvider
      .state('login', {
        url: '/login',
        template: '<login></login>'
      });
  });

{"http_code":200,"response":{"authentication_token":"a","site_id":"b","content_url":"c","user_id":"d"}}